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94 Super Duty Alternator

Discussion in 'Ford Trucks' started by Cooter24, Jan 2, 2013.

  1. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    OK, I know there is aways a lot of talk about this, I've looked everywhere. The 94 and older F series uses a crappy wiring system on the alternator. It is time for us to replace ours. Stock is 75 amps ours barely puts out 60. The largest I can get locally is an 80 amp but still uses stock wiring with no large cable direct to battery. I have found a few options. Replace w a self igniting Delco 120 amp unit and only requires 1 wire to battery. Would have to find wire for volt meter in stock wiring and hook it up to work. Other option is upgrade to 95 or 96/97 130 amp unit. Not sure if this is a direct bolt on or not. Wire ends would need to be replaced. This unit also comes w a stud terminal to use a large positive to battery. Then the 95 and 96/97 are identical cases w only difference being pulley size. Not sure what to do, but would like to upgrade over stock unit.
     
  2. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    http://alternatorparts.com/
    Sites like this may help. Some automotive electrical rebuild shops can rebuild your alternator to a higher output. This helps if you don't have the space for a larger size one. I have a shop 4 miles from me that does it all the time. I don't know what you would have being a bit out in the wilds of our country.
     
  3. Morrissey snow removal

    Morrissey snow removal PlowSite.com Addict
    Messages: 1,799

    i run the 96 on mine just change the pully
     
  4. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    Did you just re use your original pulley? What about the wiring? Will have a new one in the morning, will let you know how it goes.
     
  5. Morrissey snow removal

    Morrissey snow removal PlowSite.com Addict
    Messages: 1,799

    just put ur pully on the new one wires are the same
     
  6. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    Pry wont get to alternator today, fixing darn exhaust manifold. Old alternator had two 3 wire plugs. New one has one 3 wire plug which will plug in and a single wire plug along w a stud for positive cable to battery. Mounting platform is also about 1" longer. Will cut and reweld top alternator bracket.
     
  7. Morrissey snow removal

    Morrissey snow removal PlowSite.com Addict
    Messages: 1,799

    i have never had to cut and weld anything i have been doing it for yrs
     
  8. FordFisherman

    FordFisherman PlowSite.com Addict
    from 06611
    Messages: 1,593

    Used a junk yard Ford Taurus 130 amp alternator on my buddies truck, think we changed the pulley and it bolted right up. I believe its still going after 3 seasons.